Now I want, for example, kmail, but I can't find information about the kde5 version of kmail (or other kdepim package) in the overlay, everything seems for kde4.

Any hint?

Simple, there is none, yet.

lednakashim wrote:

now I can't find my basic kde plugins like wifi.

Probably also needs to be ported yet. Unless you mean plasma-nm, which exists._________________backend.cpp:92:2: warning: #warning TODO - this error message is about as useful as a cooling unit in the arctic